College football coaching staffs are busy putting the finishing touches on 2014 recruiting classes as the clock ticks down to national signing day. For most teams, the majority of pieces are in place and verbal commitments are weeks away from becoming signed pacts.

While many of the country's marquee recruits have already announced their collegiate destinations, a variety of high-profile prospects remain undecided. We rank the top 25 uncommitted players and take a peek at which programs remain in the picture.

Suddenly back on the market, Lammons is seemingly a slight South Carolina lean. The 5'9.5", 170-pound Plantation High School product visited Columbia last summer and plans to spend an official visit with the Gamecocks before February.

He already used an official visit at Wisconsin in November. Tennessee, Kentucky and Alabama also offered a spot to Lammons, but this is shaping up to be a two-team race between the Badgers and Gamecocks.

24. 4-Star WR Trevion Thompson (Durham, N.C.)

247Sports

Considering: Clemson, NC State, Ohio State, West Virginia

247Sports' Crystal Ball Prediction

50% Clemson

The list of uncommitted wide receivers was drastically condensed during All-American Game festivities, when several 5-star and 4-star talents revealed their collegiate intentions. Hillside High School star Trevion Thompson is one of the top pass targets available during the final stretch toward national signing day.

The 6'3", 188-pound playmaker is a gifted athlete who presents serious matchup issues with his size. He stayed busy during the 2013 season, spending time on campuses at North Carolina, Ohio State and North Carolina State.

His whirlwind recruiting tour continues into the second half of January, as planned visits to Clemson and West Virginia await. The Tigers were the first team to offer Thompson.

The Martin Luther King Jr. High School standout will visit Columbia on the weekend of Jan. 17 and travel to Athens the following weekend. The Bulldogs view Green as a crucial in-state priority, and it remains to be seen if a change at defensive coordinator will have any impact on his outlook.

22. 4-Star DT Matt Elam (Elizabethtown, Ky.)

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Considering: Kentucky, Alabama

247Sports' Crystal Ball Prediction

61% Kentucky

Matt Elam was expected to announce his commitment during the Army All-American Bowl but those plans were ultimately canceled. He postponed the decision to national signing day, leaving two conference rivals waiting down to the wire.

Elam trimmed his list to Kentucky and Alabama before the game and hasn't given any indication of a change. Indiana, Notre Dame and Louisville previously received consideration.

The 6'5", 372-pound nose tackle collected 85 tackles and four sacks as a senior at John Hardin High School, per 247Sports.

21. 4-Star LB Edwin Freeman (Arlington, Texas)

247Sports

Considering: Texas, Houston, Texas A&M, Baylor

247Sports' Crystal Ball Prediction

83% Texas

Edwin Freeman ranks among the top defenders in Texas. Although he is predominately considered an outside linebacker prospect, the Bowie High School recruit could ultimately fill more of a hybrid role at the next level, with strong safety as a possibility.

The 6'0.5", 212-pound thumper is physical, quick and leaves little question about his tacking skills near the line of scrimmage. Freeman is a frequent visitor at Texas A&M and Texas.

Those programs have risen to the forefront of his recruiting process. He spent an official visit in College Station last month, but it remains to be seen how he'll proceed with defensive-minded Charlie Strong now at the helm in Austin.

20. 4-Star OT Roderick Johnson (Florissant, Mo.)

247Sports

Considering: Ohio State, Alabama, Arkansas, Florida State

247Sports' Crystal Ball Prediction

100% Florida State

Hazelwood Central High School offensive tackle Roderick Johnson remains one of the most well-balanced bookends in the nation. At 6'6", 315 pounds, he is physically prepared to compete at the collegiate level.

Johnson took a trip to Tallahassee in December, and defending national champion Florida State seems to be a minor favorite among an eclectic mix of teams. He is also considering Ohio State and Alabama.

18. 4-Star TE Dalton Schultz (South Jordan, Utah)

247Sports

Considering: Utah, Stanford, Washington, Notre Dame

247Sports' Crystal Ball Prediction

100% Stanford

Bingham High School star Dalton Schultz is rated the nation's top-ranked tight end in 247Sports composite rankings. The 6'5", 215-pound pass target brings an excellent balance of athleticism and size to any offensive attack.

Schultz finished his senior season with 31 receptions for 512 yards and nine touchdowns, per MaxPreps. He's not a speedster but should quickly become a favorite weapon in the red zone.

He spent an official visit at Notre Dame, a program that has produced several NFL players at the position in recent years. Schultz is also eyeing up Washington, Utah and Stanford.

17. 4-Star S Steven Parker (Jenks, Okla.)

Steven Parker enjoyed his most impressive high school season as a senior. The defensive back tallied 72 tackles and six sacks, per 247Sports.

His coverage skills require refinement, but he has the tools to take over at strong safety early in college. Parker earned first-team All-USA accolades following a 2013 campaign at Jenks High School that featured 614 receiving yards and nine touchdowns.

He visited Oklahoma and Arkansas in November. The Sooners are in a solid position to secure Parker's commitment but face serious contention from Oklahoma State and Texas A&M.

15. 4-Star DT Derrick Nnadi (Virginia Beach, Va.)

247Sports

Considering: Virginia, Florida State, Virginia Tech, Penn State

247Sports' Crystal Ball Prediction

80% Virginia Tech

Defensive tackle Derrick Nnadi is still considering programs from several conferences. The Ocean Lakes High School standout led his squad to a 12-1 season, earning an Army All-American Bowl invite along the way.

Nnadi, an explosive 6'1", 305-pound prospect, can provide an intimidating presence at the three-technique and further inside along the line. He packed his recruiting schedule full of trips during the fall, spending time at Penn State, Virginia, Old Dominion and Florida State.

His itinerary still includes upcoming visits to Virginia Tech and Ohio State. Nnadi finished his senior season with 71 tackles and 20 sacks, per MaxPreps.

13. 4-Star ATH Michiah Quick (Fresno. Calif.)

247Sports

Considering: UCLA, Oklahoma, Notre Dame, USC

247Sports' Crystal Ball Prediction

45% Notre Dame

Versatile Central East High School playmaker Michiah Quick projects favorably at wide receiver, although he may ultimately end up in the defensive secondary. The Under Armour All-American Game selection starred on both sides of the ball during his high school career and has plenty of options at the next level.

Quick visited Oregon, Oklahoma, Alabama and Notre Dame during the season. He will meet the new USC coaching regime this month.

He visited TCU and Texas A&M during the season and is set to embark on a late nationwide recruiting tour. His upcoming official visits include returns to those aforementioned programs, along with trips to Auburn and Notre Dame.

11. 5-Star LB Rashaan Evans (Auburn, Ala.)

247Sports

Considering: UCLA, Auburn, Alabama

247Sports' Crystal Ball Prediction

93% Auburn

Rashaan Evans grew up in a town dominated by Tigers lore, but he is far from a lock to end up at Auburn. His list of January official visits includes the hometown team but also features a trip to rival Alabama.

Evans also visited UCLA in September. The Bruins made his list of three finalists, which eliminated Georgia and Ole Miss from contention.

The 6'3", 220-pound linebacker collected 77 tackles as a senior, per 247Sports. His effectiveness in the backfield is apparent with 43 tackles for loss and 17.5 sacks.

10. 5-Star DE Malik McDowell (Detroit, Mich.)

247Sports

Considering: Michigan, Michigan State, LSU, Ohio State

247Sports' Crystal Ball Prediction

52% Michigan State

Detroit defensive lineman Malik McDowell is a monstrous end who produced at a prolific rate during his senior season. The 6'7", 290-pound Southfield High School standout totaled 89 tackles in 10 games, per 247Sports.

He added seven sacks and projects as a sensational strong-side defensive end at the next level.

Big Ten Conference foes Ohio State, Michigan and Michigan State remain in the mix but SEC squads are also emerging as legitimate contenders for his commitment. McDowell is still expected to visit LSU and Florida.

9. 4-Star OG Damien Mama (Bellflower, Calif.)

247Sports

Considering: BYU, Alabama, USC, UCLA

247Sports' Crystal Ball Prediction

100% USC

State champion St. John Bosco used blocks by Damien Mama to keep an explosive offense on track. The 6'4", 370-pound road grader gives defenders limited room to maneuver and stacks up pancakes at a high pace.

8. 5-Star WR Ermon Lane (Homestead, Fla.)

247Sports

Considering: Florida State, Florida, Miami

247Sports' Crystal Ball Prediction

67% Florida State

Explosive receiver Ermon Lane ended a five-month pact with Florida on Jan. 10, re-opening his recruiting process at a pivotal stretch of the cycle. He showed off big-play ability in 2013, averaging almost 20 yards per catch.

Lane collected 605 receiving yards and eight touchdowns, according to 247Sports. He's a 6'3", 193-pound downfield threat who creates a tough matchup for cornerbacks and safeties.

Florida State is the prohibitive favorite to land Lane. Miami may also be under consideration after his decommitment from the Gators.

6. 5-Star DE Solomon Thomas (Coppell, Texas)

Northwest Texas star Solomon Thomas takes on all comers in his pursuit of plays in the backfield. The 6'2.5", 258-pound defensive end moves like a middle linebacker in traffic and possesses raw power to shed blocks.

He rose to national prominence after a scintillating sophomore season that featured 105 tackles, according to 247Sports.

Thomas is weighing a long list of offers, including UCLA, Notre Dame, Alabama and Texas. He is expected to visit Arkansas, Ohio State and Stanford in the coming weeks.

5. 5-Star ATH John Smith (Long Beach, Calif.)

John Smith is a coveted prospect at both safety and receiver, although defense is likely to be his initial landing spot in college. He enjoyed a sensational senior season that showcased his skills at each position.

2. 5-Star CB Adoree' Jackson (Gardena, Calif.)

Adoree' Jackson is an electrifying playmaker from the Los Angeles area. His 18 total touchdowns as a senior included three kick returns and three pick-sixes, per USA Today.

Depending where he ultimately commits, Jackson may end up playing in all three phases of the game at some point. The 5'9.5", 182-pound Junipero Serra High School product is also a state champion sprinter and has left the door open for a potential track and field career in college.

His top options include Oklahoma, Florida, LSU, UCLA and Tennessee. USC may be the team to beat, especially since the Trojans added a commitment from Jackson's high school teammate and quarterback Jalen Greene.

1. 5-Star CB Marlon Humphrey (Birmingham, Ala.)

Few defensive backs in the country can compare to Marlon Humphrey's physical skill set and football pedigree. The 6'1", 175-pound cornerback is the son of former Alabama standout and Denver Broncos player Bobby Humphrey.

He secured 35 tackles and three interceptions in 2013 for public school national champion Hoover High School. Florida State, Mississippi State, UCLA and Alabama are each set to host Humphrey for an official visit.

The Seminoles saw defensive coordinator and former Hoover assistant coach Jeremy Pruitt depart for the same job at Georgia this week.